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BOSTON MARATHON 2023

Thomas Fellows

Bib: 1854•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 2%
Gender (Male)
#0 / 15176
Top 4%
Division (M18-39)
#0 / 5285
Top 9%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:52
Rank: #824
Start → 5K
18:52 | 6:04/mi
10K· 6.21 mi
37:03
Rank: #654 (+170)
5K → 10K
18:11 | 5:51/mi
15K· 9.32 mi
55:34
Rank: #643 (+11)
10K → 15K
18:31 | 5:58/mi
20K· 12.43 mi
1:14:28
Rank: #652 (-9)
15K → 20K
18:54 | 6:05/mi
Half· 13.11 mi
1:18:34
Rank: #659 (-7)
20K → Half
4:06 | 6:01/mi
25K· 15.53 mi
1:33:22
Rank: #661 (-2)
Half → 25K
14:48 | 6:06/mi
30K· 18.64 mi
1:52:35
Rank: #651 (+10)
25K → 30K
19:13 | 6:11/mi
20M
2:01:03
Rank: #648 (+3)
30K → 20M
8:28 | 6:14/mi
21M
2:07:49
Rank: #657 (-9)
20M → 21M
6:46 | 6:46/mi
35K· 21.75 mi
2:12:18
Rank: #653 (+4)
21M → 35K
4:29 | 6:00/mi
23M
2:20:01
Rank: #635 (+18)
35K → 23M
7:43 | 6:10/mi
24M
2:25:58
Rank: #627 (+8)
23M → 24M
5:57 | 5:57/mi
40K· 24.85 mi
2:31:21
Rank: #623 (+4)
24M → 40K
5:23 | 6:18/mi
25.2M
2:33:42
Rank: #623
40K → 25.2M
2:21 | 6:49/mi
Finish· 26.22 mi
2:39:50
Rank: #622 (+1)
25.2M → Finish
6:08 | 6:01/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:18:34
Pace6:00 /mi
2nd Half
Distance13.11 mi
Time1:21:16
Pace6:12 /mi
📊Positive Split: 3.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:1918:526:0418:52
6:04
-
10K
6.21 mi10:37:3037:035:5818:11
5:51
-0:13
15K
9.32 mi10:56:0155:345:5818:31
5:58
+0:07
20K
12.43 mi11:14:551:14:286:0018:54
6:05
+0:07
Half
13.11 mi11:19:011:18:346:004:06
6:01
-0:04
25K
15.53 mi11:33:491:33:226:0114:48
6:06
+0:05
30K
18.64 mi11:53:021:52:356:0219:13
6:11
+0:05
20M
20.00 mi12:01:302:01:036:038:28
6:14
+0:03
21M
21.00 mi12:08:162:07:496:056:46
6:46
+0:32
35K
21.75 mi12:12:452:12:186:054:29
6:00
-0:46
23M
23.00 mi12:20:282:20:016:057:43
6:10
+0:10
24M
24.00 mi12:26:252:25:586:055:57
5:57
-0:13
40K
24.85 mi12:31:482:31:216:055:23
6:18
+0:21
25.2M
25.20 mi12:34:092:33:426:062:21
6:49
+0:31
Finish
26.22 mi12:40:172:39:506:066:08
6:01
-0:48

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

5:51 /mi

Average Pace

6:06 /mi

Slowest Pace

6:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:30:43

94% of race

Time at Steady Pace

9:07

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:06 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:19:1918:526:0418:52
6:04
#824
10K
6.21 mi10:37:3037:035:5818:11
5:51
#654
15K
9.32 mi10:56:0155:345:5818:31
5:58
#643
20K
12.43 mi11:14:551:14:286:0018:54
6:05
#652
Half
13.11 mi11:19:011:18:346:004:06
6:01
#659
25K
15.53 mi11:33:491:33:226:0114:48
6:06
#661
30K
18.64 mi11:53:021:52:356:0219:13
6:11
#651
20M
20.00 mi12:01:302:01:036:038:28
6:14
#648
21M
21.00 mi12:08:162:07:496:056:46
6:46
#657
35K
21.75 mi12:12:452:12:186:054:29
6:00
#653
23M
23.00 mi12:20:282:20:016:057:43
6:10
#635
24M
24.00 mi12:26:252:25:586:055:57
5:57
#627
40K
24.85 mi12:31:482:31:216:055:23
6:18
#623
25.2M
25.20 mi12:34:092:33:426:062:21
6:49
#623
Finish
26.22 mi12:40:172:39:506:066:08
6:01
#622
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi824775775623(Top 2%)580(Top 4%)580(Top 11%)
10K6.21 mi3.10 mi654+170610+165610+165505(Top 2%)464(Top 3%)464(Top 9%)
15K9.32 mi3.11 mi643+11600+10600+10623(Top 2%)580(Top 4%)580(Top 11%)
20K12.43 mi3.11 mi652-9609-9609-9739(Top 3%)697(Top 5%)697(Top 13%)
Half13.11 mi0.68 mi659-7616-7616-7768(Top 3%)727(Top 5%)727(Top 14%)
25K15.53 mi2.42 mi661-2620-4620-4749(Top 3%)708(Top 5%)708(Top 13%)
30K18.64 mi3.11 mi651+10610+10610+10654(Top 2%)617(Top 4%)617(Top 12%)
20M20.00 mi1.36 mi648+3607+3607+3711(Top 3%)672(Top 4%)672(Top 13%)
21M21.00 mi1.00 mi657-9615-8615-81285(Top 5%)1226(Top 8%)1226(Top 23%)
35K21.75 mi0.75 mi653+4611+4611+4654(Top 2%)614(Top 4%)614(Top 12%)
23M23.00 mi1.25 mi635+18595+16595+16560(Top 2%)529(Top 3%)529(Top 10%)
24M24.00 mi1.00 mi627+8587+8587+8457(Top 2%)430(Top 3%)430(Top 8%)
40K24.85 mi0.85 mi623+4583+4583+4870(Top 3%)823(Top 5%)823(Top 16%)
25.2M25.20 mi0.35 mi6235835831148(Top 4%)1087(Top 7%)1087(Top 21%)
Finish26.22 mi1.02 mi622+1582+1582+1759(Top 3%)726(Top 5%)726(Top 14%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21stories
+97ft-345ft

Overall

623

Males

580

M18-39

580

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

505

Males

464

M18-39

464

10K→15K

6.2 - 9.3 mi

Top 2%
×3stories
+67ft-78ft

Overall

623

Males

580

M18-39

580

15K→20K

9.3 - 12.4 mi

Top 3%
×5stories
+106ft-86ft

Overall

739

Males

697

M18-39

697

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

768

Males

727

M18-39

727

Half→25K

13.1 - 15.5 mi

Top 3%
×4stories
+66ft-88ft

Overall

749

Males

708

M18-39

708

25K→30K

15.5 - 18.6 mi

Top 2%
×9stories
+181ft-148ft

Overall

654

Males

617

M18-39

617

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

711

Males

672

M18-39

672

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1285

Males

1226

M18-39

1226

21M→35K

21.0 - 21.8 mi

Top 2%
×7stories
+17ft-86ft

Overall

654

Males

614

M18-39

614

35K→23M

21.8 - 23.0 mi

Top 2%
×5stories
+23ft-63ft

Overall

560

Males

529

M18-39

529

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

457

Males

430

M18-39

430

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

870

Males

823

M18-39

823

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1148

Males

1087

M18-39

1087

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

759

Males

726

M18-39

726

Passing Analysis

Category:
Athletes Passed
344
Passed By
142
Net Change
+202
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#824
5K → 10K1711+170#824#654
10K → 15K2413+11#654#643
15K → 20K1120-9#643#652
20K → Half18-7#652#659
Half → 25K1719-2#659#661
25K → 30K3323+10#661#651
30K → 20M118+3#651#648
20M → 21M514-9#648#657
21M → 35K95+4#657#653
35K → 23M246+18#653#635
23M → 24M113+8#635#627
24M → 40K128+4#627#623
40K → 25.2M550#623#623
25.2M → Finish109+1#623#622
TOTALS344142+202
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing